diff --git a/.changeset/fix-bun-object-workspaces.md b/.changeset/fix-bun-object-workspaces.md
new file mode 100644
index 00000000..de9c5ee9
--- /dev/null
+++ b/.changeset/fix-bun-object-workspaces.md
@@ -0,0 +1,5 @@
+---
+"@manypkg/tools": patch
+---
+
+Support object-form workspaces in `BunTool` to handle `catalog` usage
diff --git a/__fixtures__/basic-bun-object-workspaces/bun.lock b/__fixtures__/basic-bun-object-workspaces/bun.lock
new file mode 100644
index 00000000..669d511a
--- /dev/null
+++ b/__fixtures__/basic-bun-object-workspaces/bun.lock
@@ -0,0 +1,4 @@
+{
+  "version": "lockfile/5",
+  "lockfile": {}
+} 
\ No newline at end of file
diff --git a/__fixtures__/basic-bun-object-workspaces/package.json b/__fixtures__/basic-bun-object-workspaces/package.json
new file mode 100644
index 00000000..ac66bee0
--- /dev/null
+++ b/__fixtures__/basic-bun-object-workspaces/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "basic-bun-object-workspaces",
+  "version": "1.0.0",
+  "private": true,
+  "workspaces": {
+    "packages": [
+      "packages/*"
+    ],
+    "catalog": {
+      "some-dep": "^1.0.0"
+    }
+  }
+}
diff --git a/__fixtures__/basic-bun-object-workspaces/packages/package-one/package.json b/__fixtures__/basic-bun-object-workspaces/packages/package-one/package.json
new file mode 100644
index 00000000..80acbd05
--- /dev/null
+++ b/__fixtures__/basic-bun-object-workspaces/packages/package-one/package.json
@@ -0,0 +1,4 @@
+{
+  "name": "package-one",
+  "version": "1.0.0"
+}
diff --git a/__fixtures__/basic-bun-object-workspaces/packages/package-one/src/index.js b/__fixtures__/basic-bun-object-workspaces/packages/package-one/src/index.js
new file mode 100644
index 00000000..8b1a3937
--- /dev/null
+++ b/__fixtures__/basic-bun-object-workspaces/packages/package-one/src/index.js
@@ -0,0 +1 @@
+// empty
diff --git a/__fixtures__/bun-object-workspace-base/bun.lock b/__fixtures__/bun-object-workspace-base/bun.lock
new file mode 100644
index 00000000..e69de29b
diff --git a/__fixtures__/bun-object-workspace-base/package.json b/__fixtures__/bun-object-workspace-base/package.json
new file mode 100644
index 00000000..3447a9ed
--- /dev/null
+++ b/__fixtures__/bun-object-workspace-base/package.json
@@ -0,0 +1,13 @@
+{
+  "name": "bun-object-workspace-base",
+  "version": "1.0.0",
+  "private": true,
+  "workspaces": {
+    "packages": [
+      "packages/*"
+    ],
+    "catalog": {
+      "some-dep": "^1.0.0"
+    }
+  }
+}
diff --git a/__fixtures__/bun-object-workspace-base/packages/pkg-a/package.json b/__fixtures__/bun-object-workspace-base/packages/pkg-a/package.json
new file mode 100644
index 00000000..68c0c900
--- /dev/null
+++ b/__fixtures__/bun-object-workspace-base/packages/pkg-a/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "bun-object-workspace-base-pkg-a",
+  "version": "1.0.0",
+  "main": "src/index.js"
+}
diff --git a/__fixtures__/bun-object-workspace-base/packages/pkg-b/package.json b/__fixtures__/bun-object-workspace-base/packages/pkg-b/package.json
new file mode 100644
index 00000000..5f68c4b7
--- /dev/null
+++ b/__fixtures__/bun-object-workspace-base/packages/pkg-b/package.json
@@ -0,0 +1,5 @@
+{
+  "name": "bun-object-workspace-base-pkg-b",
+  "version": "1.0.0",
+  "main": "src/index.js"
+}
diff --git a/packages/find-root/src/index.test.ts b/packages/find-root/src/index.test.ts
index 0b599809..8a9b77e6 100644
--- a/packages/find-root/src/index.test.ts
+++ b/packages/find-root/src/index.test.ts
@@ -97,6 +97,17 @@ const runTests = (findRoot: FindRoot) => {
     });
   });
 
+  test("it returns the root of a bun monorepo with object-form workspaces", async () => {
+    let tmpPath = f.copy("basic-bun-object-workspaces");
+    let monorepoRoot = await findRoot(
+      path.join(tmpPath, "packages", "package-one", "src")
+    );
+    expect(monorepoRoot).toEqual({
+      tool: BunTool.type,
+      rootDir: tmpPath,
+    });
+  });
+
   test("it does not detect bun monorepo without lock file", async () => {
     let tmpPath = f.copy("bun-no-lock");
     let monorepoRoot = await findRoot(
diff --git a/packages/get-packages/src/index.test.ts b/packages/get-packages/src/index.test.ts
index 53b89fab..0f24bb6c 100644
--- a/packages/get-packages/src/index.test.ts
+++ b/packages/get-packages/src/index.test.ts
@@ -141,6 +141,27 @@ let runTests = (getPackages: GetPackages) => {
     }
   });
 
+  it("should resolve workspaces for bun with object-form workspaces", async () => {
+    const dir = f.copy("bun-object-workspace-base");
+
+    // Test for both root and subdirectories
+    for (const location of [".", "packages", "packages/pkg-a"]) {
+      const allPackages = await getPackages(path.join(dir, location));
+
+      if (allPackages.packages === null) {
+        return expect(allPackages.packages).not.toBeNull();
+      }
+
+      expect(allPackages.packages[0].packageJson.name).toEqual(
+        "bun-object-workspace-base-pkg-a"
+      );
+      expect(allPackages.packages[1].packageJson.name).toEqual(
+        "bun-object-workspace-base-pkg-b"
+      );
+      expect(allPackages.tool.type).toEqual("bun");
+    }
+  });
+
   it("should resolve workspaces for lerna", async () => {
     const dir = f.copy("lerna-workspace-base");
 
diff --git a/packages/tools/src/BunTool.ts b/packages/tools/src/BunTool.ts
index 7981ec4b..542e4b1a 100644
--- a/packages/tools/src/BunTool.ts
+++ b/packages/tools/src/BunTool.ts
@@ -16,7 +16,9 @@ import {
 import { readJson, readJsonSync } from "./utils.ts";
 
 interface BunPackageJSON extends PackageJSON {
-  workspaces?: string[];
+  workspaces?:
+    | string[]
+    | { packages: string[]; catalog?: Record<string, string> };
 }
 
 async function hasBunLockFile(directory: string): Promise<boolean> {
@@ -55,7 +57,10 @@ export const BunTool: Tool = {
         hasBunLockFile(directory),
       ]);
       if (pkgJson.workspaces && hasLockFile) {
-        if (Array.isArray(pkgJson.workspaces)) {
+        if (
+          Array.isArray(pkgJson.workspaces) ||
+          Array.isArray(pkgJson.workspaces.packages)
+        ) {
           return true;
         }
       }
@@ -76,7 +81,10 @@ export const BunTool: Tool = {
       }
       const pkgJson = readJsonSync(directory, "package.json") as BunPackageJSON;
       if (pkgJson.workspaces) {
-        if (Array.isArray(pkgJson.workspaces)) {
+        if (
+          Array.isArray(pkgJson.workspaces) ||
+          Array.isArray(pkgJson.workspaces.packages)
+        ) {
           return true;
         }
       }
@@ -97,7 +105,9 @@ export const BunTool: Tool = {
         rootDir,
         "package.json"
       )) as BunPackageJSON;
-      const packageGlobs: string[] = pkgJson.workspaces || [];
+      const packageGlobs: string[] = Array.isArray(pkgJson.workspaces)
+        ? pkgJson.workspaces
+        : pkgJson.workspaces?.packages || [];
 
       return {
         tool: BunTool,
@@ -124,7 +134,9 @@ export const BunTool: Tool = {
 
     try {
       const pkgJson = readJsonSync(rootDir, "package.json") as BunPackageJSON;
-      const packageGlobs: string[] = pkgJson.workspaces || [];
+      const packageGlobs: string[] = Array.isArray(pkgJson.workspaces)
+        ? pkgJson.workspaces
+        : pkgJson.workspaces?.packages || [];
 
       return {
         tool: BunTool,